{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["DNA", "cell type", "protein", "cell line", "RNA"], "input": "Transcription factor requirements for U2 snRNA -encoding gene activation in B lymphoid cells ."}
{"DNA": [], "cell type": ["B lymphoid cells"], "protein": ["Transcription factor"], "cell line": [], "RNA": ["U2 snRNA"]}